1351325545 has 4 divisors (see below), whose sum is σ = 1621590660. Its totient is φ = 1081060432.

The previous prime is 1351325531. The next prime is 1351325587. The reversal of 1351325545 is 5455231531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5455231531 = 19 ⋅287117449.

It can be written as a sum of positive squares in 2 ways, for example, as 899040256 + 452285289 = 29984^2 + 21267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351325545 - 2¹⁷ = 1351194473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351325545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135132550 + ... + 135132559.

It is an arithmetic number, because the mean of its divisors is an integer number (405397665).

Almost surely, 2^1351325545 is an apocalyptic number.

It is an amenable number.

1351325545 is a deficient number, since it is larger than the sum of its proper divisors (270265115).

1351325545 is an equidigital number, since it uses as much as digits as its factorization.

1351325545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270265114.

The product of its digits is 45000, while the sum is 34.

The square root of 1351325545 is about 36760.3800986878. The cubic root of 1351325545 is about 1105.5710608594.

The spelling of 1351325545 in words is "one billion, three hundred fifty-one million, three hundred twenty-five thousand, five hundred forty-five".